619048128-PPT-SCI-Q2WK5-DAY-1-5-1.pptx111

NERVOUS SYSTEM

1. WEEK 5 Day 1 Lesson 21: Identifying the Parts of the Reproductive System of Some Animals Ppt Created by : PRECILA R. UMALI JZMES Based from Science Exemplar 5 by Science Writing Team Batangas Province

2. What are the parts of the human male reproductive system? Female reproductive system? Show it using the graphic organizer below. Review Female reproductive system

3. What are the parts of the human male reproductive system? Female reproductive system? Show it using the graphic organizer below. Review Male reproductive system

4. Establishing a purpose for the lesson You have just studied the human reproductive system. Do you know the parts of the reproductive system of some animals? Look at the picture, do you know how this animal reproduce?

5. Presenting examples/ instances of the lesson Activity Animals’ Reproductive System I . Problem: What are the parts of the reproductive system of male and female cat and dog? II . Materials: Diagram of male and female reproductive system of a cat and dog. III.Procedures : 1. Study the diagram of male and female reproductive system of a cat and dog. Male dog Female dog Male cat Female cat

6. Female cat

7. Male cat

8. Male dog

9. Female dog

10. IV . Data and Observation List down the different parts of the reproductive system of the animals presented. Fill in the table below. Animal Parts of the Reproductive System Male Female

11. Discussing new concepts and practicing new skills #1 1. Group reporting of outputs 2. Answering guide questions: a. What are the parts of the male cat? male dog? female cat? Female dog? b. Are the parts of the dogs and cats male and female reproductive system the same? c. Are they similar to human? Why?

12. Discussing new concepts and practicing new skills #2 1. The teacher gives additional information about the topic. 2. The pupils may ask questions about the topic. Developing mastery

13. EVALUATION

14. WEEK 5 Day 2 Lesson 22: Describing the Parts of the Reproductive Systems of Some Animals Based from Science Exemplar 5 by Science Writing Team Batangas Province Ppt Created by : PRECILA R. UMALI JZMES

15. Review Direction: Write the word FACT if the statement is correct and BLUFF if it is not. FACT or BLUFF 1. The reproductive system of female dogs and humans are very similar. 2. The reproductive tract of a female cat consists of the female genital organs.

16. 3. The male dogs have ovaries. 4. The male reproductive system of a dog is composed of ovaries, oviducts, uterus, cervix and vagina.

17. Establishing a purpose for the lesson Observe the picture of the animals? How do these animals reproduce ? What parts of their reproductive system work for the continued existence of their own kind? Let’s find out .

18. Group I- Discuss and describe the parts of the male dog reproductive system Group II- Discuss and describe the parts of the female dog reproductive system Group III- Discuss and describe the parts of the male cat reproductive system Group IV- Discuss and describe the parts of the female cat reproductive system

19. Let’s Describe the Parts! I. Problem : Can you describe the parts of the reproductive system of the male and female cats and dogs? II. Materials: 1. Pupils researched clippings/ information about the description of the parts of the reproductive system of male and female dogs and cats.(The topic is pre- assigned already) 2. Enlarged diagrams of the reproductive system of male and female dog and cat.(diagrams used during the previous lesson) III. Procedures: 1. Group yourselves according to the assigned topic. 2. Share the information you gathered about the topic. 3. Discuss with your group members the parts and description of the animal reproductive system assigned to you.

20. 4 . Report your group outputs in class.

21. Discussing new concepts and practicing new skills #1 1. Group reporting of outputs. Answering guide questions: a. What are the parts of the male cat? male dog? female cat? Female dog? b. Can you describe each part? c. Are they similar to human? Why?

22. Evaluation Read the following description. Choose the letter of the best answer . ___1 . The external opening of the reproductive tract of a female cat that protects the opening of the vagina oviduct B . vulva C. cervix D . uterus

23. __2 . The following are all parts of the male cat reproductive system, which is NOT? A . testicles B . vas deferens C . Penis D . ovaries

24. ____3 . These are small finger-like tubes of the female dog reproductive system that serve as the site for fertilization by the sperm. A . ovaries B . oviducts C . vagina D. uterus

25. ___4 . The part of the male dog reproductive system which is a pouch divided by a thin wall into two cavities, each of which is occupied by a testicles. A . penis B . vas deferens C . prostate glands D. scrotum

26. ___5 . The following are all true about the reproductive system of animals EXCEPT. A . Male and female puppies are born with their reproductive organs present. B. The reproductive systems of female dogs and humans are very similar. C. Different animals possess complicated reproductive systems . D. Male and female animals have the same parts of the reproductive systems.

27. Additional activities for application or remediation Make a slogan about the parts of the reproductive systems of animals

28. WEEK 5 Day 3 Lesson 23: Describing the Mode of Reproduction in Butterflies and Mosquitoes Based from Science Exemplar 5 by Science Writing Team Batangas Province Ppt Created by : PRECILA R. UMALI JZMES

29. Review The teacher will ask pupils to read the slogan previously assigned about the reproductive system of an animal they made. Establishing a purpose for the lesson Let pupils assemble the puzzles. The teacher may use localized materials in producing butterfly and mosquito puzzles such as old cartoon, magazine or used cardboard .( or make your own version of the puzzle )

30. 1.What kind of insects are formed ? 2. Can you give their physical characteristics ? 3.Do you think they can reproduce their own kind? Let’s find out about the butterflies and mosquitoes mode of reproduction .

31. What insects are shown in the picture?

32. Presenting examples/ instances of the lesson Activity How Life Begins? I. Problem: How do butterfly and mosquito reproduce? II. Materials: video of butterfly and mosquito reproduction https://www.youtube.com/watch?v=mddykmQBCBM III. Procedures: 1. Watch the videos of the mode of reproduction of butterflies and mosquitoes. 2. Take note of the way how butterflies and mosquitoes reproduce. Answer the following questions: 1. How does reproduction in butterflies begin? 2. What produces the sperm that fertilized the egg of the female butterfly? 3. What happens to the fertilized egg? 4. In what place does a butterfly usually lay eggs? 5. What provides food for the eggs when they become butterfly? 6. Does mosquito reproduce? 7. Do male and female mosquitoes mate? 8. Where does a female mosquito lay its eggs? 9. What happen to the fertilized eggs?

33. Discussing new concepts and practicing new skills #1 Answering the guide questions: 1. How does reproduction in butterflies begin? 2. What produces the sperm that fertilized the egg of the female butterfly ? 3. What happens to the fertilized egg? 4. In what place does a butterfly usually lay eggs? 5. What provide food for the eggs when they become butterfly? 6. What stages does a butterfly undergo as it develops and grow? 7. Do male and female mosquitoes mate? 8. Where does a female mosquito lay its eggs? 9. When does female mosquito lay its eggs? Why?

34. Discussing new concepts and practicing new skills #2 1. The teacher gives additional information about the topic. 2. The pupils may ask questions about the topic. Developing mastery Direction: Sequence the following stages in correct order to show the reproduction of a butterfly. Number it from 1-5. _______A. Then the male and female butterflies areready to mate. _______B. Once the female’s eggs are fertilized, she lays eggs on different plants.

35. _______C. The male butterfly deposits sperm into the female butterfly. _______D. Reproduction in butterflies begins with courtship. _______E. The plants will provide food for the eggs when they become caterpillars.

36. Finding practical applications of concepts and skills in daily living Why are mosquitoes considered the deadliest animals on earth? Since all mosquitoes need water to complete each cycle, what should you do with the stagnant water like canals near your house to avoid breeding place of disease carrier mosquitoes. Making generalizations and abstractions about the lesson I learned that ______________________________________

37. Evaluation Direction: Read each situation. Choose the letter of the correct answer . 1 . Where do mosquitoes lay their eggs? A . leaves C . garbage B . stagnant D . dark place 2 . What does the female mosquito do with the fully developed eggs? A . lays them C . keep them B .fertilize them D. both A B

38. 3. What happens during the mating process of male and female butterfly? A . The eggs of the female butterfly are developed . B . The eggs of the female butterfly are fertilized . C . The male butterfly provide food for the female butterfly , D . The male butterfly deposit sperms into the female butterfly .

39. 4. The following are all true about reproduction of mosquitoes. EXCEPT ____. A . Adult mosquitoes usually mate within few days after emerging from the pupal stage . B . The female mosquitoes fly into the swarm to mate. C . Mosquitoes reproduce asexually or where cells from only one parent are used . D . Once the eggs are fully developed, the female mosquito lays them.

40. 5 . Why do animals reproduce? A . to make new animals B . obligation to the species C . to get rid of unhealthy animals D . to get food from its yo Assignment Write a two- stanza poem about the mode of reproduction of butterflies and mosquitoes.

41. WEEK 5 Day 4 Lesson 24: Describing the Mode of Reproduction in Frogs Based from Science Exemplar 5 by Science Writing Team Batangas Province Ppt Created by : PRECILA R. UMALI JZMES

42. Review Tell whether the statement is true or false. If FALSE, give the right word to make the statement correct. ___1. In few insects such as butterflies and mosquitoes, eggs hatch directly into miniature adults. ___2. The male butterfly sperm fertilizes the female butterfly eggs.

43. ___3. Mosquitoes reproduce asexually. ___4. Insects undergo distinct changes as they develop from an egg to an adult. ___5. Two main modes of reproduction are sexual and asexual.

44. Establishing a purpose for the lesson Tell something about the animal on the picture. Where do frogs live? Describe their body coverings. How do frogs reproduce ?

45. Presenting examples/ instances of the lesson Activity Watch and Learn! I. Problem: How do frogs reproduce? II. Materials: video of frogs reproduction https://www.youtube.com/watch?v=q50Yphp1gzI III. Procedures: 1. Watch the video of the mode of reproduction in frogs. 2. Take note how frogs reproduce. Guide Questions a. How does reproduction in frogs begin? b. When does a female frog ready to mate? c. What stimulates the female frog to release her eggs? d. During mating, what are discharged from the male through the cloaca ? e. Why does sperm of a male frog reaches many eggs? f. How do gametes of frogs brought together? g. How does external fertilization take place in frogs?

46. Discussing new concepts and practicing new skills #1 1. Group reporting of outputs 2. Answering the guide questions: a. How does reproduction in frogs begin? b. When does a female frog ready to mate with a male frog? c. What stimulates the female frog to release her eggs? d. During mating, what are discharged from the male through the cloaca ? e. Why does sperm of a male frog reach many eggs? f. How do gametes of frogs brought together? g. How does external fertilization take place?

47. Developing mastery Form a dyad. Ask somebody about the mode of reproduction in frog. Pupil 1- Where does a frog lay eggs? Pupil 2- Frog lays eggs in water. (Call more pairs of learners) ?

48. Finding practical applications of concepts and skills in daily living In what ways do frogs become helpful? Making generalizations and abstractions about the lesson I learned that __________________________.

49. Background Information for the Teacher Frogs are amphibians . Their bodies are covered with thin moist slippery skin . Just like other animals, their youngs are hatched from eggs . Frogs reproduce sexually . In frogs, when a female is full of eggs and ready to mate, she approaches a male.

50. The male embraces the female with his front legs in a process called amplexus . This stimulates the female to release her eggs the same time the male releases his sperm. Because they are in close contact and the gametes are released at the same time, the sperm reaches many eggs.

51. Evaluation Describe the mode of reproduction in frogs by sequencing the following events according to correct order. Write 1-5 in the blank . __A . With his front legs, the male frog embraces the female. __B . The gametes are released at the same time, the sperm reaches many eggs.

52. __ C.The female frog approaches a male when it is full of eggs and ready to mate. __D . Frogs gametes are released at the same time . __E . When the female frog is stimulated to release her eggs, the male releases his sper m

53. Assignment Write a short essay on how frogs reproduce .

54. WEEK 5 Day 5 Lesson 25: Describing the Mode of Reproduction in Cats and Dogs Based from Science Exemplar 5 by Science Writing Team Batangas Province Ppt Created by : PRECILA R. UMALI JZMES

55. Review Why are dogs reproductive system similar to human? What does the female reproductive system of a cat consist of?

56. B. Establishing a purpose for the lesson Study the pictures of animals. What are common to them? Have you wonder how they reproduce?

57. Presenting examples/ instances of the lesson Activity How Animals Reproduce I. Problem: How do cats and dogs reproduce? II. Materials: paragraph about cats and dogs III. Procedures: 1. Read and understand the paragraphs Breeding and Reproduction of Cats Like dogs, cats also have an estrous, or heat, cycle. However, female cats, which are called queens, are  induced ovulators . This means that they do not ovulate (pass an egg) unless they are bred. This greatly increases the chances of conception when bred, which is why stray queens often have many kittens per year.

58. If the queen is bred, the cycle ends as her body prepares for pregnancy. Gestation, or pregnancy, lasts about 2 months (60 to 63 days), with an average litter size of about 4 kittens. Queens can be bred by more than one male during a heat period, resulting in kittens from the same litter with different sires. Signs of pregnancy include a large abdomen, increased appetite, and swollen mammary glands that may release milk when squeezed.

59. During the later stages of pregnancy, the queen seeks a nesting area and places bedding in a quiet, secluded spot. Cats that are not pregnant sometimes show these signs of pregnancy during a pseudopregnancy , or false pregnancy. This usually begins at the end of estrus and can last for several months. Your veterinarian can tell you if the pregnancy is real or false.

60. REPRODUCTION IN DOGS Puberty or sexual maturity in the female dog usually occurs around six months of age. The smaller breeds tend to go into oestrus or "heat" earlier and some females can have their first "heat" cycle as early as four months of age. On the other hand, the large and giant breeds can be up to two years old before they come into heat for the first time.

61. How often do female dogs come into heat ? On average this occurs about twice a year or every six months, although it varies from dog to dog. When cycling first begins, there may be a great deal of variability in the time between cycles. This is normal. Some females take eighteen months to two years to develop a regular cycle.

62. Finding practical applications of concepts and skills in daily living How should we take good care of our pet dogs and cats? Making generalizations and abstractions about the lesson I learned that _________________________________________.

63. Evaluation Direction: Write true if the statement is correct and false if the statement is wrong. Underline the word that makes the statement wrong. __1 . Female dog produces the egg cells. __2 . Female dog mates anytime. __3 . Cats and dogs reproduce sexually. __4 . Cats mate loudly. __5 . Female cat gives birth to only one kitten

64. Assignment: Create a jingle about cats and dogs reproduction.